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Topic: Question about the centipede shield (Read 478 times) previous topic - next topic

mennis22

Hello, I am relatively new to the Arduino community and do not have as much experience as most of the other users.  I have an Arduino Uno, and plan on getting the Centipede Shield (http://macetech.com/store/index.php?main_page=product_info&products_id=23) in order to expand the I/O number.  I understand that the shield adds an additional 64 pins, but is that in addition to the already 14 digital pins (making 78 usable digital pins) since the shield uses the analog pins to communicate, or are the only usable digital pins the 64 on the shield? I cannot seem to find this information online.

Thanks for your help!

JimboZA

#1
Dec 28, 2013, 06:09 am Last Edit: Dec 28, 2013, 06:58 am by JimboZA Reason: 1
Reads to me like the existing digital pins are intact, since it adds 64 pins by sacrificing 2 of the analog pins.

Edit... Looking at their sample sketch, you preface each command with CS. as in CS.digitalWrite(5, HIGH); which refers to the new pin 5. So pretty sure original pin 5 will still be available as digitalWrite(5, HIGH);
No PMs for help please. Not active on this forum any more.

mennis22


Reads to me like the existing digital pins are intact, since it adds 64 pins by sacrificing 2 of the analog pins.

Edit... Looking at their sample sketch, you preface each command with CS. as in CS.digitalWrite(5, HIGH); which refers to the new pin 5. So pretty sure original pin 5 will still be available as digitalWrite(5, HIGH);


JimboZA, thank you very much.  I am going to try and use this and hope it works! I'll update the status incase someone wants to reference this in the future.

macegr

JimboZA is correct, the other pins all pass through the shield. The only four pins connected to the Arduino are A4, A5, 5V, and GND.
Unique RGB LED Modules and Arduino shields: http://www.macetech.com/store

robtillaart

You also can use the A0..A3 as digital pin so in fact you have 14 +4 + 64 = 82 digital pins.
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

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